Groundwater contaminant transport in presence of colloids II: sensitivity and uncertainty analysis on literature case studies

Marzio Marseguerra, Edoardo Patelli, Enrico Zio

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In a previous paper, the authors have presented a newly developed stochastic model of groundwater contaminant transport which is capable of accounting for the contribution of colloids flowing in the porous medium. The model is nonlinear and accounts explicitly for the exchange interactions among contaminants, colloids and the porous matrix, by means of properly introduced transition rates. The physical model is straightforward and intuitive, and it results in a system of differential equations whose dimensionality, in practical cases, is such to entail a Monte Carlo simulation to approach its solution. In this second part of the work, we explore in details the role played by those parameters which characterize the contaminant-colloid and the colloid-solid matrix interactions. A case study of Pu-239 transport inspired by a potential site for high level waste deposit at Mol (Belgium) is considered and the effects of colloid-facilitated transport is investigated under various conditions. Furthermore, an unc ertainty analysis is performed to account for the uncertainties which in realistic situations affect the system and the transport phenomena. In this regard, a case study of Pu-239 transport inspired by the test site in Nevada has been considered.

Original languageEnglish
Pages (from-to)1799-1807
Number of pages9
JournalAnnals of Nuclear Energy
Volume28
Issue number18
Early online date6 Sep 2001
DOIs
Publication statusPublished - 31 Dec 2001

Keywords

  • groundwater contaminant transport
  • Monte Carlo simulation
  • colloid-solid matrix interactions

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